Christmas Eve was the beginning of Christmastide 2018, the twelve days of Christmas. Many people celebrate only Christmas day, then they return to their normal activities. For those in the kingdom of God, that tradition should change.
The reason that everyone in the kingdom of God should celebrate twelve days of Christmas is premised on the fact that the Messiah's reign will be celebrated not only in this current millennium, but also, for another eleven millennia, as all of the other universes come into submission to the will and purpose of the Lord God Almighty, the God of all the universes.
The Lord God Almighty El Shaddai